Wireless Router RAPIRA

Institute for Information Transmission Problems of
Russian Academy of Sciences
Wireless Router RAPIRA
Moscow 2005
RAPIRA is a system for implementing distributed wideband wireless networks providing an access to
the Internet, telephony, and other public networks. With RAPIRA one can build corporative networks
integrating video, voice, telemetry, etc.
RAPIRA is developed by the Institute for Information Transmission Problems of the Russian
Academy of Sciences.
Product Highlights
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Point – to – (multi)Point configuration
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Support for IEEE 802.11a, 802.11b, 802.11g
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Extended Tuning Range (2.300-2.500 & 4.900-6.100 GHz)
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Hardware encryption for Wi-Fi Protected Access (WPA) and IEEE 802.11i security
specifications provides Advanced Encryption Standard (AES), Temporal Key Integrity
Protocol (TKIP) and Wired Equivalent Privacy (WEP) without performance degradation
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Outdoor solution: Basic version (-35C – +50C) and Siberian version (-60C - +55C)
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Real-time hardware data Compression, Packet Concatenation and Packet Bursting
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Support for RIP v.1, RIP v.2, OSPF, BGP4+
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Support for SNMP
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QoS by subscriber and application
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Hardware and Software WatchDog
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VLAN segmentation, full support for IEEE 802.1Q
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Two radio interfaces
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Repeater configuration for very long distance links
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Support for IEEE 802.1D
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DHCP Server, Relay and Client. NTP Client
Moscow 2005
Brief description
Wireless Router RAPIRA is an outdoor device and can operate under hard weather and temperature
conditions. This feature allows one to place the device in immediate vicinity of antenna using a short
feeder (low signal fading).
RAPIRA operates at 2.3 – 2.5 GHz and at 4.9 – 6.1GHz.
Maximum bit rate – up to 108Mbps. Effective bit rate – 45Mbps. Maximum link radius for point-topoint link – 50km (with amplification of dish aerial 32dB and bit rate 6Mbps). Special XR mode using
low bit rate (3-0.25Mbps) is supported, which increases device’s sensitivity by 10-13dB in the case of
signal drop. In Access Point mode, RAPIRA allows up to 250 clients.
RAPIRA is a four-in-one device supporting functionality of a Wireless Bridge, a Router, a Firewall
and a VPN PPtP Access Server.
Moscow 2005
Supported topologies
RAPIRA admits arbitrary topology networks: point-to-point backbones, long-distance lines with
retransmission, point-to-multipoint cellular networks (with a single base station covering variety of
clients).
Point - to - Point
Point –to -MultiPoint
Repeaters Line
Moscow 2005
Wireless equipment
The following equipment can be used for abovementioned topologies networks:
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Wireless Router RAPIRA with one or two wireless interfaces
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Directional planar antenna, amplification 20-26dB
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Beam dish aerial (narrow-directional parabolic antenna), amplification 28-34dB
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Antenna with pie diagram (30-120 degrees) in the horizontal plane, amplification 14-17dB
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Boosters with output 0.25-1 watts
Wireless Router RAPIRA is a multi-purpose device. It supports functionality of a Wireless Access
Point, Wireless Client or WDS Repeater. For RAPIRA with two wireless interfaces, the interfaces can
be independently configured to perform in different modes, e.g. Access Point mode and Client mode.
Depending on chosen topology and calculated line parameters, RAPIRA is supplemented with a pie
diagram antenna(s) for a base station or a directional antenna(s) for a wireless client or for a point-topoint link. Thus a system to be install at every point of the network results.
Typical link distances and bit rates
Typical link distances and bit rates are calculated assuming free space signal propagation, 99.95%
(ITU 530-8) link availability and external 25dBi antenna.
We assume that the transmitter antenna and the receiver antenna are within line of sight (LOS) and
adequately adjusted, no noises at operating frequency, all connectors are properly assembled, and 8DFB feeder is not longer than 1m.
Table 1 Maximum point-to-point link range
Dish aerials with amplification of 30dB and 0.9m in diameter are used.
Data rates:
With no booster, 50 mW
With booster, 250 mW
54 Mbps
6 Km
15 Km
36 Mbps
14 Km
28 Km
24 Mbps
22 Km
38 Km
18 Mbps
32 Km
50 Km
6 Mbps
50 Km
80 Km
Table 2 Access Point – Client link
For client, dish aerials (narrow-directional parabolic antenna) with amplification of 30dB are used. For
access point, pie diagram antenna (16dB, 7x60 degrees) is used. We give an approximate calculation
for downstream (from access point to client) and upstream (from client to access point).
Moscow 2005
Link Distance 1 Km
Access Point:
54 / 48
250 mW,
Client: 50 mW
2 Km
3 Km
4 Km
5 Km
7 Km
54-36 /
36-24
48-24/
24-18
36-24/
18-12
36-18/
18-9
24-18/
12-6
9 Km
30 Km
24 - 12 / 0.5XR /
9- 6
0.25XR
Nearby clients in urban zone can operate out of the field of vision (NLOS). Operation ability for a
client should be determined experimentally.
Technical specifications
Radio specification
Radio Frequency Bands
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2.3-2.4 GHz
2.4-2.5 GHz (ISM)
4.9-5.15 GHz
5.15-5.35 GHz ( FCC UNII 1,2)
5.35-5.47 GHz
5.47-5.725 GHz (ETSI)
5.725-5.850 GHz ( FCC UNII 3)
5.85-6.10 GHz
Modulation Types
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OFDM: BPSK, QPSK, 16 QAM, 64 QAM
CCK: BPSK, QPSK
Data Rates
Normal mode: 54, 48, 36, 24, 18, 12, 9, 6 Mbps
Turbo mode: 108, 96, 72, 48, 36, 24, 18, 12 Mbps
Normal mode:
OFDM
Receive Sensitivity at the
N Connector
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–70 dBm @ 54 Mbps
–74 dBm @ 48 Mbps
–78 dBm @ 36 Mbps
–82 dBm @ 24 Mbps
–85 dBm @ 18 Mbps
–87 dBm @ 12 Mbps
–88 dBm @ 9 Mbps
–90 dBm @ 6 Mbps
CCK
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-88 dBm @ 11 Mbps
-90 dBm @ 5.5 Mbps
-92 dBm @ 2 Mbps
Moscow 2005
• -93 dBm @ 1 Mbps
XR mode (super sensitivity):
OFDM
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-93 dBm @ 3 Mbps
-95 dBm @ 2 Mbps
-98 dBm @ 1 Mbps
-100 dBm @ 0.5 Mbps
-103 dBm @ 0.25 Mbps
Turbo mode:
OFDM
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–67 dBm @ 108 Mbps
–71 dBm @ 69 Mbps
–75 dBm @ 72 Mbps
–79 dBm @ 48 Mbps
–82 dBm @ 36 Mbps
–84 dBm @ 24 Mbps
–85 dBm @ 18 Mbps
–86 dBm @ 12 Mbps
Max Transmit Output at the N
Connector (Adjustable)
14 -19 dBm (depend on frequency band and data rate).
Typical values: 50mW@5–6GHz, [email protected]
Effective Data Throughput
Up to 30 Mbps (in turbo mode)
External antenna connector
N Connector (female), 50 Ohm
Security
WPA-PSK, WPA-EAP with support for TKIP & AES;
WEP (64, 128, 154)
TDMA (PCF) (collision free)
Media access
CSMA/CA (DCF)
Output Power Control
Yes, from 0 dBm to 19 dBm
Dynamical Data Rate choice
Yes, system chooses the best rate according to connection
quality
Width of radio signal spectrum
Normal mode: 20 MHz
Turbo mode: 40 MHz
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Network specification
Management
SSH; Telnet; HTTP; SNMP
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IP accounting
Diagnostic utilities: ping, traceroute, tcpdump
Syslog
RX and TX data transfer statistics for both
Ethernet and Radio interfaces
• Ability to monitor both noise level and
connection rate for each link to the AP
• Signal Strength Meter, for easy client antenna
alignment or signal level troubleshooting
Monitoring and Diagnostic
Fully Transparent Bridge
With Spanning Tree Protocol (STP) IEEE 802.1D
Routing
Static, RIPv1, RIPv2, OSPF, BGP4+
VLAN
Full support for IEEE 802.1Q
Firewall
Access Server
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NAT (DNAT, SNAT)
Access lists
Filters control over the flow of specific
protocols through Ethernet and radio ports
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PPPoE
PPtP, VPN (IP tunneling)
Authentication PAP, CHAP, MS-CHAP(v2)
MPPE
Support for Radius Server
Yes
Quality of Service (QoS)
IP shaping, prioritization of traffic and protocols
DHCP
DHCP Server, Relay and Client.
Support for HOTSPOT
Yes. With eeZee special option, that enables clients to
access the network regardless of their IP settings.
Captive Portal - web login hotspot.
Technical specification
Power Consumption
Basic version: 12V (recommended range 7-18V), 580
mA, 7W; Siberian version: 48V, 395 mA, 19W
Power Supply
Power over Ethernet via outdoor RJ45 Fast Ethernet
port with build-in surge protection
Operating Temperature
Basic version (-35C – +50C)
Siberian version (-60C - +55C)
Ingress Protection
IP 67 where 6=Totally protected from dust and
7=Protected from the effects of immersion in liquid
between 15cm and 1m
Dimensions
210 x 180 x 50 mm (8.27’’ x 7.08’’ x 1.97’’)
Moscow 2005
Contacts & Feedback
Institute for Information
Transmission Problems
Russian Academy of Sciences
19, B. Karetny line, GSP-4
127994, Moscow
Russia
E-mail: [email protected]
Project leader:
Deputy Director, Dr. Sc. Prof.
Vladimir M. Vishnevsky
Tel: +7 (095) 2992904
Fax: +7 (095) 2003316
E-mail: [email protected]
http://vishnevsky.iitp.ru
Moscow 2005